Flight Reliability
DL 3097 · Delta Air Lines
Atlanta → Valparaiso (ATL–VPS)
81
Pretty Reliable
WanderNerd Reliability Score
- 81%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 1.8%
- Cancelled
- 7 min early
- Median arrival delay
Based on 339 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 3097 arrived on time 87% of the time on Tuesdays. On Sundays: 73%.
The breakdown
- Mon82%(50 flights)
- Tue87%(47 flights)
- Wed79%(47 flights)
- Thu87%(47 flights)
- Fri77%(47 flights)
- Sat84%(43 flights)
- Sun73%(51 flights)
81%
May
Jun 64% → May 81% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 64% | 28 |
| July 2025 | 62% | 29 |
| August 2025 | 84% | 31 |
| September 2025 | 93% | 30 |
| October 2025 | 72% | 18 |
| November 2025 | 88% | 17 |
| December 2025 | 87% | 31 |
| January 2026 | 74% | 31 |
| February 2026 | 93% | 28 |
| March 2026 | 75% | 28 |
| April 2026 | 97% | 30 |
| May 2026 | 81% | 31 |
- Departures on time
- 80%
- Diverted
- 0.3%
- Flights flown
- 332
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 339 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.